Acquisitions and Other Transactions (Sale of Interest of Ethanol Joint Venture) (Details) - USD ($) $ in Millions	Jul. 31, 2025	Dec. 31, 2025	Dec. 31, 2024
Business Combination [Line Items]
Equity method investments		$ 6,795	$ 6,857
The Andersons Marathon Holdings LLC
Business Combination [Line Items]
Percentage of ownership before transaction	49.90%
Proceeds from sale of equity method investments	$ 427
Equity method investments	173
Gain on disposition of stock in equity method investee	$ 254

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details

- Definition

This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

+ References + Details

Marathon Petroleum Corp 10-K